Reversible action automatic lock slider



Sept. 27, 1960 REVERSIBLE ACTION AUTOMATIC LOCK SLIDER Filed May 15,1958 l.. H. MORIN 2,953,831

ATTORNEY United States i Patented, .Septf 2,7. 11960 l REVERSIBLE ACTIONAUTMATIC LOCK' SLIDER Louis H. Morin, Bronx, N.Y (1.25 Beechwood Ave,`New Roohelle N-.Y.).

Filed May 15, 1958,. Ser. No.y 735,495'

i3 Claims. (Cl- 24F-205.14)

wherein a yoke enveloping the slider walls is pivotally mounted upon onewall of the slider and tensional means is employed for normallysupporting the locking lugs of the yoke in operative position.

Still more particularly, the. invention deals with a slider structure ofthe character described wherein each pull disposed on opposed walls ofthe slider can opera- Ytively engage the yoke in movement of thelocking'lugs into inoperative position against the action of said springfor movement of the slider along the stringers.

vThe novel features of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing,` in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitablereferencecharacters in each of the views and, in which;

Fig. l is a face view of one side of a slider made vaccording to myinvention, with part of Vthe construction shown in section and with partbroken away.

Fi-g. 2 is a view similar to Fig. 1 illustrating Ythe reverse side ofthe slider with part of the construction broken away.

Fig. 3 is an enlarged sectional view on the broken line 3-3 .of Fig. 1,with -parts ofthe construction shown in elevation; and

Fig. 4 is `a sect-ion on the line 4-4 of Fig. 3, omitting all backgroundshowing.

Considering Fig. 3 of -the draw-ing, I have shown at 10 a slider havinga pair of walls 11 and 1,2. joined and spaced by connecting web 13 atthe wide end portion 14 of the slider body, these wide end Vportionsbeing illus trated in lFigs. l vand 2 ofthe drawing,

At 15 and 16 respectively are shown the inwardly extending anges atadjacent surfaces of the walls 11 and 12 ,for `[guidance of the Ascoops1of separable fastener stringers into the .channel of .the slider fbody,as with other devices of this type and kind.

-At 17 fin Fig. -3 of VVthe drawing, 'I have indicated in :dotted linesdiagrammatically the position of a Ascoop uwithin the -ohannel rof 'thelslider, particularly indicating fitsengagement -with the llocking lugs`o f the slider `later described. l

The Wall 11of the-slider has at `the wide end portion thereof aprojecting lug 1 8 having a l transverse aperture 19 therein, as clearlynoted in `Fig. 1 of the drawing. *.lhisf'wall.of.the slider, includingthe -web 13, has a deep 'ipertfurex'll) forwthe-receptionofand'rnountingofgr coil `spring 221.'-flhe-narrowendlportion of the Wali "11 has an outwardly projectingstop bridge 22 and the wall 11 has an elongated aperture 23 whichextends beneath the bridge 22, as clearly noted in Fig. 3.

Tho` wall 1 2 of. the. .Slider has, Centrally of the gud of the wideond: portion 14 of the Slider a projecting abutmoet Z4. Wall 152. at thenarrow end portion has a proieotori 25. for the. purpose of; balancing:the appeararee. of the Slider at 'both walls thereoi, the projeotionterminating adiaoout the wide end 14 of the slider in Slot 26, noteFisofthe drawing, this slot being adapted --to rooeire aud'sude a proieoting' tongue 2-1 at one'end of a looking` volte, 22%.'. The endofthe' yoke 2a having the. projection includes. an inwardly protesting.shoulder 2 2 in conjunotion with which the. rounded pin end 3,4) 0f oliopull 3 1 is. adapted to operate as later described.

The other endY 'portion of.' the yoke 2:8, includes a pair 0f Qffeilocking lugs 52 Whisk are adapted to operate in coniuuotion with the'fastener scoops in retaining the slider in looked position upon thestringers of a 'separable fastener. This ,end portion ,of the yoke 28includes a PrDJQCtllg finger 'adapted; to operate in conjunction withthe. proiooting bridge 2.2- in checking outward swinging movement of theyoke in operation ofthe pull 31 or the pull ,34 arranged upon the wall11.

It wil-1 appear from a consideration of Fig. 3 of the drawing `that theinnermost locking lug 32 has a long beveled sur-tage in `Coniurictionwith which the pin ond 36 oi the pull lift operates in swinging the'yokep'ut- W'ardly in mQuernent .of the lugs 32 into inoperative posiihmwith, respetar to the,v scoops. This same result is a'ccomplished byengagement of the pin end 30 of the 121111.31 with the inwardlyprojecting shoulder 29.

It. will appear from a consideration of Eig. Elr of the draw-ing that.the. end portions of the yoke 28, including the, 111g 32, are. free tonuove in the aperture 23V of the wall 11.

The second named .end vportion of the yoke 28 has substantiallycentrally thereof an aperture 37 for free reception of the lug `18 andopposed walls 3S, bordering the aperture `3,7, includes inwardlyprojecting pivot pins 39 note Fig. 1 ofthe drawing, which operate in theyaperture 19, ,0f the lug 18.

The yoke is preferably a ,die cast 4part and in the casting .operation`the walls 38 are spread suiiiciently to clear the Vpiyotpins 39 overthe lug 18, after which pressure is applied to the kside walls 38 tomove the pins` 39'i`nto operative .engagement with the lug 18, the.result of 'this `Operation ibeing `shown on .the finished productasv-illus* trated Lin Fig. Vl of ,the drawing.

It vwill appear from va .consideration of Fig. 3 of the drawing that theside .walls 3S include inward extensions, one of which is shown at 38 in'F.ig. 3 of the'drawing, tto provide ample bearing surface upon the llug18 and also to partially housethe'spring 21.

v'ilhe projections 38' form a .recess 40 in the yoke adjacent thelaperture `37, and .the base of the recess includes 1a projection 41.upon .which .the outer end .portion ,of the spring 21 is seated, .ashlearly noted in Fig. 3 of thedrawing.

While thecposs thead portion 42 of the yoke could .integrally join .end.portions .of theyoke, in the structure Y.as Lshown the ,yoke .is madeof along part 43 and a short part 4A, rand considering Fig. 4 of `thethe drawing it .will appear `thatthese parts have reduced ,..overlapping.portions 45 and 46 respectively,leachhaving 48 are'riveted overfasdiagrammatically noted in Fig. 4

of the drawing, the crosshead 42 of the yoke is made as one.

It will appear from a consideration of Fig. 3 of the drawing that inmovement of the slider in the direction of the arrow 51 by either of thepulls 31 and 34, the lugs 32 will be moved into inoperative position,permitting free movement of the slider along the fastener stringers. Onthe other hand, in movement of the slider in the direction of the arrow52 by leither of the pulls 31, 34, the pull 31 or the pin end 30 thereofwill strike the abutment 24, whereas the pin end 36 of the pull 34 willstrike the lug 18, and the yoke will ratchet over the fastener scoops,which ratcheting is against the action of the spring 21 as will beapparent.

It will appear from a consideration of Fig. 2 that the pull 31 has alarge aperture 53 to clear the projection 25 when the pull is incollapsed position, and the pull 34 has an aperture 54 to clear thebridge 22 when the pull is in collapsed position, the apertures 54 and53 being clearly shown in Figs, 1 and 2.

By way of summary, and for descriptive purposes the long part 43 of yoke2S may be termed a lock element or lock element portion, and this ispivotally attached to one wall of the slider and has locking projections32. The short part 44 of yoke 28, which is disposed on the oppositewall, may be termed a member, and this is joined to the lock element bymeans, disposed outwardly of the web, comprising the crosshead portion42, there being thereby formed the yoke or yoke-like piece 28. A secondmember 25 is immovably iixed to the said opposite wall. The first member44 movably engages the second member through the interengaging means 26,27, the interengaged members thus simulating the lock element portion43. As noted, each pull when drawn in the fastener-opening directionengages and moves the said yoke-like piece about the pivot of the lockelement portion thereof, thereby to.move the locking projections out ofthe channel and to unlock the slider. When either pull is drawn in thefastener-closing direction, it engages a fixed portion of the slider,projection 18 or abutment 24, so that the yoke-like piece is not movedabout the said pivot and so -that the locking projections ratchet overthe fastener.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A lock slider for separable fastener stringers comprising achannelled slider body defined by walls joined and spaced by aconnecting web at a wide end of the slider body, a lock yoke envelopingthe slider body, said yoke having a long part arranged upon one wall ofthe slider and a short part upon the other wall, said partsA` beingjoined in a crosshead extending over the wide end of the slider body,means on said first named wall and the long part of said yoke forpivoting the yoke on the slider body, the free end of the long part ofthe yoke having locking lugs adapted to extend into the channel of theslider body at a narrow end portion of said body, tensional meansoperating upon the long part of said yoke for normally supporting saidlocking lugs in operative position in the channel of the slider body, apair of pulls, one pull being arranged and opend of said slider andunder said short end of said Y yoke for checking movement of the secondnamed pull in one direction of said wall.

2. A lock slider for separable' fastener stringers comprising achannelled slider body defined by walls joinedj and spaced by aconnecting web at a wide end of the slider body, a lock yoke envelopingthe slider body, said"`l yoke having a long part arranged upon one wallof the slider and a short part upon the other wall, said parts beingjoined in a crosshead extending over the wide= end of the slider body,means on said first named wall: and the long part of said yoke forpivoting the yoke on the slider body, the free end of the long part ofthe yoke having locking lugs adapted to extend into the channel of tieslider body at a narrow end portion of said body, tensional meansoperating upon the long part of said yoke for normally supporting saidlocking lugs in operative position in the channel of the slider body, apair of pulls, one pull being arranged and operating upon the firstnamed wall of the slider body and adapted to simultaneously engage thelong part of said yoke and said first mentioned wall for movement ofsaid locking lugs into inoperative position against the action of saidtensional means, the other pull being arranged upon the other wall ofthe slider body between said yoke and said other wall and operativelyengaging the short part of said yoke in moving said locking lugs intoinoperative position against the action of said tensional means, andsaid second named wall having a projecting part forming an extension tothe short part of said yoke, and said projection and short part of theyoke having intertting portions for definitely positioning the shortpart of the yoke ou said second named wall.

3. A lock slider for separable fastener stringers comprising achannelled slider body defined by walls joined and spaced by aconnecting web at a wide end of the slider body, a lock yoke envelopingthe slider body, said yoke having a long part arranged upon one wall ofthe slider and a short part upon the other wall, said parts being joinedin a crosshead extending over the wide end of the slider body, means onsaid rst named wall and the long part of said yoke for pivoting the yokeon the slider body, the free end of the long part of the yoke havinglocking lugs adapted to extend into the channel of the slider body at anarrow end portion of said body, tensional means operating upon the longpart of said yoke for normally supporting said locking lugs in operativeposition in the channel of the slider body, a pair of pulls, one pullbeing arranged and operating upon the first named wall of the sliderbody and adapted to simultaneously engage the long part of said yoke andsaid first mentioned wall for movement of said locking lugs intoinoperative position against the action of said tensional means, theother pull being arranged upon the other wall of the slider body betweensaid yoke and said other wall and operatively engaging the short part ofsaid yoke in moving said locking lugs into inoperative position againstthe action of said tensional means, and the long and short parts of theyoke including at the crosshead portion overlapping parts and meanssecuring said parts together.

References Cited in the file of this patent UNITED STATES PATENTS2,222,529 Dahlin Nov. 19, 1940 2,373,523 Winterhalter Apr. 10, 19452,405,875 Carlile Aug. 13, 1946 2,423,210 Ulrich July 1, 1947 2,779,078Morin Jan. 29, 1957 2,799,070 Weber July 16, 1957 FOREIGN PATENTS 2,978Germany May 1956 146,031 Sweden July 6, 1954 306,980 Switzerland July16, 1955

